Solve the following system of equations by substitution.
x + y = 5
y = 3
A. (-2, 3)
B. (2, -3)
C. (0, 0)
D. (2, 3)

Question

Solve the following system of equations by substitution. 
x + y = 5 
y = 3
	A.	(-2, 3)
	B.	(2, -3)
	C.	(0, 0)
	D.	(2, 3)

luigi0210 · Answer

Sub in y
x+3=5
Now solve for x:

cenaida · Answer

2?

luigi0210 · Answer

Yup, so (2, y) 
and y is given as: 3 
So...

cenaida · Answer

so the answer is D! aww thanx luigy! <3 im gonna miss u so much ur the only one that i understand when u explain to me :) i love u pal!

luigi0210 · Answer

No problem, and there's always nin ;)

nincompoop · Answer

May I jump right in? it seems intuitive that we can tell 2 is the right answer, but we want to make sure that we show systematically how that is so. 

x+y = 5; y =3
x+3=5
x+3-3=5-3 
x+0 = 2
x=2;y3
(2,3)

luigi0210 · Answer

^ See

cenaida · Answer

hahaha oh i love you guys... :)